关键词: 大松动圈, 软岩巷道, 支护技术, 连续梁, 大锚杆, 钢带

Abstract: Aiming at the complicated surrounding rock condition and roadway failure under the original supporting form in the lower 23 mining area of Juji Coal Mine, the ground stress and surrounding rock loosening zone of the lower 23 mining area are tested. The results show that the horizontal stress of the roadway is greater than the vertical stress, and the ground stress characteristics are of the horizontal stress field type, and the roadway surrounding rock loosening zone belongs to the roadway surrounding rock loosening zone. Yu Dasong moved around the soft rock roadway. According to the principle of continuous beam support, the large bolt combined with longitudinal and transverse steel band staggered combined support is adopted, and the support of the side is strengthened, the whole control of the surrounding rock of the roadway is realized, the deformation of the surrounding rock of the roadway is effectively prevented, and the better supporting effect is obtained, which provides certain technical reference for the roadway support under similar conditions.